What are the characteristics of a cell?
Cells are the smallest and basic units of life that perform all the necessary functions to sustain life. They are typically microscopic and are the building blocks of all living organisms. Cells are enclosed in a membrane and consist of a nucleus, cytoplasm, and various organelles, each which are responsible for carrying out specific functions. They can replicate and divide to form new cells. Cells are classified into two main types: prokaryotic and eukaryotic. Prokaryotic cells are basic and lack a nucleus, whereas eukaryotic cells have a nucleus and other organelles.